/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/mix045_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 00:41:02,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 00:41:02,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 00:41:02,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 00:41:02,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 00:41:02,246 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 00:41:02,247 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 00:41:02,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 00:41:02,250 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 00:41:02,251 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 00:41:02,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 00:41:02,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 00:41:02,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 00:41:02,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 00:41:02,255 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 00:41:02,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 00:41:02,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 00:41:02,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 00:41:02,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 00:41:02,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 00:41:02,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 00:41:02,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 00:41:02,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 00:41:02,265 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 00:41:02,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-06 00:41:02,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 00:41:02,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 00:41:02,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 00:41:02,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 00:41:02,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 00:41:02,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 00:41:02,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 00:41:02,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 00:41:02,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 00:41:02,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 00:41:02,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 00:41:02,277 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-06 00:41:02,299 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 00:41:02,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 00:41:02,300 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 00:41:02,300 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 00:41:02,301 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 00:41:02,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 00:41:02,301 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 00:41:02,301 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 00:41:02,301 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 00:41:02,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 00:41:02,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 00:41:02,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 00:41:02,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 00:41:02,302 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 00:41:02,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 00:41:02,303 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 00:41:02,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 00:41:02,303 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 00:41:02,303 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 00:41:02,304 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 00:41:02,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 00:41:02,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 00:41:02,304 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 00:41:02,304 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 00:41:02,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 00:41:02,305 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 00:41:02,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 00:41:02,305 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 00:41:02,305 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 00:41:02,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 00:41:02,306 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 00:41:02,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 00:41:02,620 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 00:41:02,623 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 00:41:02,624 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 00:41:02,625 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 00:41:02,626 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix045_power.opt.i [2020-10-06 00:41:02,682 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43fcc68c5/369b89b3d5bb4df787daa6a682634255/FLAG4fd2d4148 [2020-10-06 00:41:03,251 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 00:41:03,252 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix045_power.opt.i [2020-10-06 00:41:03,269 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43fcc68c5/369b89b3d5bb4df787daa6a682634255/FLAG4fd2d4148 [2020-10-06 00:41:03,574 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43fcc68c5/369b89b3d5bb4df787daa6a682634255 [2020-10-06 00:41:03,583 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 00:41:03,585 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 00:41:03,585 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 00:41:03,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 00:41:03,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 00:41:03,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 12:41:03" (1/1) ... [2020-10-06 00:41:03,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1467314f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:41:03, skipping insertion in model container [2020-10-06 00:41:03,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 12:41:03" (1/1) ... [2020-10-06 00:41:03,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 00:41:03,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 00:41:04,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 00:41:04,161 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 00:41:04,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 00:41:04,299 INFO L208 MainTranslator]: Completed translation [2020-10-06 00:41:04,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:41:04 WrapperNode [2020-10-06 00:41:04,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 00:41:04,301 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 00:41:04,301 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 00:41:04,301 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 00:41:04,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:41:04" (1/1) ... [2020-10-06 00:41:04,329 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:41:04" (1/1) ... [2020-10-06 00:41:04,368 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 00:41:04,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 00:41:04,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 00:41:04,368 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 00:41:04,379 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:41:04" (1/1) ... [2020-10-06 00:41:04,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:41:04" (1/1) ... [2020-10-06 00:41:04,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:41:04" (1/1) ... [2020-10-06 00:41:04,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:41:04" (1/1) ... [2020-10-06 00:41:04,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:41:04" (1/1) ... [2020-10-06 00:41:04,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:41:04" (1/1) ... [2020-10-06 00:41:04,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:41:04" (1/1) ... [2020-10-06 00:41:04,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 00:41:04,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 00:41:04,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 00:41:04,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 00:41:04,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:41:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 00:41:04,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 00:41:04,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 00:41:04,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 00:41:04,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 00:41:04,480 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 00:41:04,481 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 00:41:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 00:41:04,481 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 00:41:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-06 00:41:04,481 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-06 00:41:04,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 00:41:04,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 00:41:04,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 00:41:04,484 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-06 00:41:06,380 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 00:41:06,380 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-06 00:41:06,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 12:41:06 BoogieIcfgContainer [2020-10-06 00:41:06,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 00:41:06,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 00:41:06,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 00:41:06,387 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 00:41:06,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 12:41:03" (1/3) ... [2020-10-06 00:41:06,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@743544b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 12:41:06, skipping insertion in model container [2020-10-06 00:41:06,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:41:04" (2/3) ... [2020-10-06 00:41:06,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@743544b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 12:41:06, skipping insertion in model container [2020-10-06 00:41:06,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 12:41:06" (3/3) ... [2020-10-06 00:41:06,391 INFO L109 eAbstractionObserver]: Analyzing ICFG mix045_power.opt.i [2020-10-06 00:41:06,403 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 00:41:06,403 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 00:41:06,410 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-06 00:41:06,411 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 00:41:06,442 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,442 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,442 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,443 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,443 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,443 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,444 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,444 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,444 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,444 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,445 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,445 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,445 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,445 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,445 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,445 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,446 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,446 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,446 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,447 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,447 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,447 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,448 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,448 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,448 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,448 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,449 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,449 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,449 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,449 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,450 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,450 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,450 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,450 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,451 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,451 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,455 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,455 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,455 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,455 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,464 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,464 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,465 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,465 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,465 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,465 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,465 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,466 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,466 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,466 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,468 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,468 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,468 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,468 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,469 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,469 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,469 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,469 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,469 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,469 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,470 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,470 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:41:06,484 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-06 00:41:06,505 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 00:41:06,505 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 00:41:06,505 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 00:41:06,505 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 00:41:06,505 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 00:41:06,505 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 00:41:06,506 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 00:41:06,506 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 00:41:06,521 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 95 transitions, 205 flow [2020-10-06 00:41:06,523 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 103 places, 95 transitions, 205 flow [2020-10-06 00:41:06,592 INFO L129 PetriNetUnfolder]: 2/92 cut-off events. [2020-10-06 00:41:06,593 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 00:41:06,600 INFO L80 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 2/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2020-10-06 00:41:06,606 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 103 places, 95 transitions, 205 flow [2020-10-06 00:41:06,650 INFO L129 PetriNetUnfolder]: 2/92 cut-off events. [2020-10-06 00:41:06,650 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 00:41:06,653 INFO L80 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 2/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2020-10-06 00:41:06,656 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1692 [2020-10-06 00:41:06,657 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 00:41:08,257 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2020-10-06 00:41:08,296 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 4, 2, 2, 1] term [2020-10-06 00:41:08,296 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 00:41:08,301 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 4, 1] term [2020-10-06 00:41:08,302 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-06 00:41:09,199 WARN L193 SmtUtils]: Spent 878.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 124 [2020-10-06 00:41:09,418 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2020-10-06 00:41:10,371 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2020-10-06 00:41:10,497 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-10-06 00:41:11,203 WARN L193 SmtUtils]: Spent 704.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 110 [2020-10-06 00:41:11,540 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-06 00:41:12,433 WARN L193 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 126 [2020-10-06 00:41:12,778 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-06 00:41:13,440 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-06 00:41:13,791 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-06 00:41:13,939 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-06 00:41:14,076 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-06 00:41:14,403 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-06 00:41:14,541 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-06 00:41:14,550 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4375 [2020-10-06 00:41:14,551 INFO L214 etLargeBlockEncoding]: Total number of compositions: 80 [2020-10-06 00:41:14,554 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 26 transitions, 67 flow [2020-10-06 00:41:14,605 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 750 states. [2020-10-06 00:41:14,608 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states. [2020-10-06 00:41:14,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-06 00:41:14,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:41:14,616 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:41:14,617 INFO L427 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:41:14,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:41:14,623 INFO L82 PathProgramCache]: Analyzing trace with hash -139107104, now seen corresponding path program 1 times [2020-10-06 00:41:14,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:41:14,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271362110] [2020-10-06 00:41:14,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:41:14,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:41:14,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:41:14,910 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271362110] [2020-10-06 00:41:14,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:41:14,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 00:41:14,912 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [53963683] [2020-10-06 00:41:14,913 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:41:14,917 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:41:14,931 INFO L258 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-10-06 00:41:14,932 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:41:14,936 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:41:14,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:41:14,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:41:14,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:41:14,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:41:14,955 INFO L87 Difference]: Start difference. First operand 750 states. Second operand 3 states. [2020-10-06 00:41:15,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:41:15,038 INFO L93 Difference]: Finished difference Result 650 states and 2028 transitions. [2020-10-06 00:41:15,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:41:15,041 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-06 00:41:15,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:41:15,062 INFO L225 Difference]: With dead ends: 650 [2020-10-06 00:41:15,062 INFO L226 Difference]: Without dead ends: 530 [2020-10-06 00:41:15,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:41:15,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-10-06 00:41:15,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2020-10-06 00:41:15,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2020-10-06 00:41:15,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 1622 transitions. [2020-10-06 00:41:15,155 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 1622 transitions. Word has length 7 [2020-10-06 00:41:15,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:41:15,156 INFO L479 AbstractCegarLoop]: Abstraction has 530 states and 1622 transitions. [2020-10-06 00:41:15,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:41:15,156 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 1622 transitions. [2020-10-06 00:41:15,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 00:41:15,157 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:41:15,157 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:41:15,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 00:41:15,161 INFO L427 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:41:15,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:41:15,162 INFO L82 PathProgramCache]: Analyzing trace with hash -537885840, now seen corresponding path program 1 times [2020-10-06 00:41:15,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:41:15,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3947660] [2020-10-06 00:41:15,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:41:15,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:41:15,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:41:15,299 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3947660] [2020-10-06 00:41:15,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:41:15,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 00:41:15,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [314623210] [2020-10-06 00:41:15,300 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:41:15,302 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:41:15,303 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-06 00:41:15,304 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:41:15,304 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:41:15,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:41:15,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:41:15,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:41:15,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:41:15,306 INFO L87 Difference]: Start difference. First operand 530 states and 1622 transitions. Second operand 3 states. [2020-10-06 00:41:15,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:41:15,333 INFO L93 Difference]: Finished difference Result 518 states and 1576 transitions. [2020-10-06 00:41:15,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:41:15,334 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-06 00:41:15,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:41:15,341 INFO L225 Difference]: With dead ends: 518 [2020-10-06 00:41:15,341 INFO L226 Difference]: Without dead ends: 518 [2020-10-06 00:41:15,342 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:41:15,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2020-10-06 00:41:15,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 518. [2020-10-06 00:41:15,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2020-10-06 00:41:15,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 1576 transitions. [2020-10-06 00:41:15,369 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 1576 transitions. Word has length 9 [2020-10-06 00:41:15,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:41:15,370 INFO L479 AbstractCegarLoop]: Abstraction has 518 states and 1576 transitions. [2020-10-06 00:41:15,370 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:41:15,370 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 1576 transitions. [2020-10-06 00:41:15,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 00:41:15,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:41:15,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:41:15,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 00:41:15,372 INFO L427 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:41:15,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:41:15,373 INFO L82 PathProgramCache]: Analyzing trace with hash 505408109, now seen corresponding path program 1 times [2020-10-06 00:41:15,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:41:15,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908708533] [2020-10-06 00:41:15,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:41:15,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:41:15,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:41:15,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908708533] [2020-10-06 00:41:15,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:41:15,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 00:41:15,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [746866739] [2020-10-06 00:41:15,443 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:41:15,445 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:41:15,447 INFO L258 McrAutomatonBuilder]: Finished intersection with 15 states and 18 transitions. [2020-10-06 00:41:15,447 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:41:15,483 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:41:15,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:41:15,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:41:15,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:41:15,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:41:15,484 INFO L87 Difference]: Start difference. First operand 518 states and 1576 transitions. Second operand 3 states. [2020-10-06 00:41:15,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:41:15,497 INFO L93 Difference]: Finished difference Result 482 states and 1450 transitions. [2020-10-06 00:41:15,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:41:15,498 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-06 00:41:15,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:41:15,503 INFO L225 Difference]: With dead ends: 482 [2020-10-06 00:41:15,503 INFO L226 Difference]: Without dead ends: 482 [2020-10-06 00:41:15,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:41:15,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2020-10-06 00:41:15,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2020-10-06 00:41:15,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-10-06 00:41:15,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 1450 transitions. [2020-10-06 00:41:15,527 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 1450 transitions. Word has length 10 [2020-10-06 00:41:15,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:41:15,528 INFO L479 AbstractCegarLoop]: Abstraction has 482 states and 1450 transitions. [2020-10-06 00:41:15,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:41:15,528 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 1450 transitions. [2020-10-06 00:41:15,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 00:41:15,530 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:41:15,531 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:41:15,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 00:41:15,531 INFO L427 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:41:15,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:41:15,531 INFO L82 PathProgramCache]: Analyzing trace with hash 365755524, now seen corresponding path program 1 times [2020-10-06 00:41:15,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:41:15,541 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680368487] [2020-10-06 00:41:15,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:41:15,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:41:15,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:41:15,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680368487] [2020-10-06 00:41:15,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:41:15,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:41:15,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [181078816] [2020-10-06 00:41:15,787 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:41:15,789 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:41:15,793 INFO L258 McrAutomatonBuilder]: Finished intersection with 19 states and 24 transitions. [2020-10-06 00:41:15,793 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:41:15,843 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 3, 2, 1] term [2020-10-06 00:41:15,844 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:41:15,845 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 1] term [2020-10-06 00:41:15,845 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:41:15,847 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:41:15,848 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:41:15,848 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:41:15,863 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 00:41:16,012 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [6330#(or (and (= ~y~0 ~y$w_buff0~0) (= ~y$w_buff0~0 0) (= ~y$r_buff0_thd0~0 0)) (not (= (mod ~y$w_buff0_used~0 256) 0))), 6331#(or (and (= ~y~0 ~y$w_buff0~0) (= ~y$w_buff0~0 0) (or (= (mod ~y$w_buff1_used~0 256) 0) (= ~y$w_buff1~0 ~y$w_buff0~0)) (= ~y$r_buff0_thd0~0 0)) (and (= (mod ~y$r_buff0_thd0~0 256) 0) (not (= (mod (* ~y$w_buff0_used~0 255) (- 256)) 0))))] [2020-10-06 00:41:16,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-06 00:41:16,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:41:16,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-06 00:41:16,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-06 00:41:16,013 INFO L87 Difference]: Start difference. First operand 482 states and 1450 transitions. Second operand 7 states. [2020-10-06 00:41:16,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:41:16,247 INFO L93 Difference]: Finished difference Result 578 states and 1763 transitions. [2020-10-06 00:41:16,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 00:41:16,248 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2020-10-06 00:41:16,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:41:16,253 INFO L225 Difference]: With dead ends: 578 [2020-10-06 00:41:16,253 INFO L226 Difference]: Without dead ends: 578 [2020-10-06 00:41:16,254 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-06 00:41:16,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2020-10-06 00:41:16,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 470. [2020-10-06 00:41:16,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2020-10-06 00:41:16,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 1406 transitions. [2020-10-06 00:41:16,272 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 1406 transitions. Word has length 12 [2020-10-06 00:41:16,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:41:16,272 INFO L479 AbstractCegarLoop]: Abstraction has 470 states and 1406 transitions. [2020-10-06 00:41:16,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-06 00:41:16,273 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 1406 transitions. [2020-10-06 00:41:16,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 00:41:16,275 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:41:16,275 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:41:16,276 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 00:41:16,276 INFO L427 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:41:16,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:41:16,276 INFO L82 PathProgramCache]: Analyzing trace with hash -1546482384, now seen corresponding path program 1 times [2020-10-06 00:41:16,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:41:16,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419878738] [2020-10-06 00:41:16,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:41:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:41:16,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:41:16,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419878738] [2020-10-06 00:41:16,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:41:16,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:41:16,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [271236881] [2020-10-06 00:41:16,359 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:41:16,362 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:41:16,366 INFO L258 McrAutomatonBuilder]: Finished intersection with 22 states and 29 transitions. [2020-10-06 00:41:16,366 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:41:16,408 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:41:16,409 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:41:16,418 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 00:41:16,425 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-10-06 00:41:16,433 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-06 00:41:16,450 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [7859#(and (= ~y~0 1) (= ~y$r_buff0_thd0~0 0))] [2020-10-06 00:41:16,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-06 00:41:16,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:41:16,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-06 00:41:16,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-10-06 00:41:16,451 INFO L87 Difference]: Start difference. First operand 470 states and 1406 transitions. Second operand 6 states. [2020-10-06 00:41:16,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:41:16,526 INFO L93 Difference]: Finished difference Result 494 states and 1464 transitions. [2020-10-06 00:41:16,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 00:41:16,527 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-06 00:41:16,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:41:16,531 INFO L225 Difference]: With dead ends: 494 [2020-10-06 00:41:16,531 INFO L226 Difference]: Without dead ends: 494 [2020-10-06 00:41:16,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-10-06 00:41:16,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-10-06 00:41:16,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 486. [2020-10-06 00:41:16,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 486 states. [2020-10-06 00:41:16,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 1446 transitions. [2020-10-06 00:41:16,548 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 1446 transitions. Word has length 13 [2020-10-06 00:41:16,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:41:16,549 INFO L479 AbstractCegarLoop]: Abstraction has 486 states and 1446 transitions. [2020-10-06 00:41:16,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-06 00:41:16,549 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 1446 transitions. [2020-10-06 00:41:16,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-06 00:41:16,550 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:41:16,550 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:41:16,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 00:41:16,551 INFO L427 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:41:16,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:41:16,551 INFO L82 PathProgramCache]: Analyzing trace with hash -697643707, now seen corresponding path program 1 times [2020-10-06 00:41:16,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:41:16,553 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388577091] [2020-10-06 00:41:16,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:41:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:41:16,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:41:16,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388577091] [2020-10-06 00:41:16,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:41:16,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:41:16,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [80893318] [2020-10-06 00:41:16,632 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:41:16,635 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:41:16,639 INFO L258 McrAutomatonBuilder]: Finished intersection with 23 states and 30 transitions. [2020-10-06 00:41:16,640 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:41:16,665 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:41:16,671 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:41:16,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 00:41:16,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:41:16,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 00:41:16,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 00:41:16,672 INFO L87 Difference]: Start difference. First operand 486 states and 1446 transitions. Second operand 4 states. [2020-10-06 00:41:16,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:41:16,702 INFO L93 Difference]: Finished difference Result 306 states and 854 transitions. [2020-10-06 00:41:16,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 00:41:16,703 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-06 00:41:16,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:41:16,704 INFO L225 Difference]: With dead ends: 306 [2020-10-06 00:41:16,704 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 00:41:16,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:41:16,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 00:41:16,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 00:41:16,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 00:41:16,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 00:41:16,705 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-06 00:41:16,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:41:16,705 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 00:41:16,705 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 00:41:16,706 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 00:41:16,706 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 00:41:16,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-06 00:41:16,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 12:41:16 BasicIcfg [2020-10-06 00:41:16,710 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 00:41:16,712 INFO L168 Benchmark]: Toolchain (without parser) took 13127.54 ms. Allocated memory was 138.9 MB in the beginning and 353.4 MB in the end (delta: 214.4 MB). Free memory was 100.4 MB in the beginning and 230.7 MB in the end (delta: -130.2 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB. [2020-10-06 00:41:16,713 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-06 00:41:16,714 INFO L168 Benchmark]: CACSL2BoogieTranslator took 715.12 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 100.0 MB in the beginning and 154.1 MB in the end (delta: -54.1 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-10-06 00:41:16,715 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.82 ms. Allocated memory is still 200.8 MB. Free memory was 154.1 MB in the beginning and 151.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-06 00:41:16,716 INFO L168 Benchmark]: Boogie Preprocessor took 41.05 ms. Allocated memory is still 200.8 MB. Free memory was 151.5 MB in the beginning and 148.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-06 00:41:16,716 INFO L168 Benchmark]: RCFGBuilder took 1973.46 ms. Allocated memory was 200.8 MB in the beginning and 249.6 MB in the end (delta: 48.8 MB). Free memory was 148.8 MB in the beginning and 199.7 MB in the end (delta: -50.9 MB). Peak memory consumption was 104.5 MB. Max. memory is 7.1 GB. [2020-10-06 00:41:16,717 INFO L168 Benchmark]: TraceAbstraction took 10326.24 ms. Allocated memory was 249.6 MB in the beginning and 353.4 MB in the end (delta: 103.8 MB). Free memory was 197.9 MB in the beginning and 230.7 MB in the end (delta: -32.8 MB). Peak memory consumption was 71.0 MB. Max. memory is 7.1 GB. [2020-10-06 00:41:16,721 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 715.12 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 100.0 MB in the beginning and 154.1 MB in the end (delta: -54.1 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 66.82 ms. Allocated memory is still 200.8 MB. Free memory was 154.1 MB in the beginning and 151.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.05 ms. Allocated memory is still 200.8 MB. Free memory was 151.5 MB in the beginning and 148.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1973.46 ms. Allocated memory was 200.8 MB in the beginning and 249.6 MB in the end (delta: 48.8 MB). Free memory was 148.8 MB in the beginning and 199.7 MB in the end (delta: -50.9 MB). Peak memory consumption was 104.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10326.24 ms. Allocated memory was 249.6 MB in the beginning and 353.4 MB in the end (delta: 103.8 MB). Free memory was 197.9 MB in the beginning and 230.7 MB in the end (delta: -32.8 MB). Peak memory consumption was 71.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 8.0s, 103 ProgramPointsBefore, 36 ProgramPointsAfterwards, 95 TransitionsBefore, 26 TransitionsAfterwards, 1692 CoEnabledTransitionPairs, 8 FixpointIterations, 33 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 889 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 4375 CheckedPairsTotal, 80 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 94 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.0s, HoareTripleCheckerStatistics: 127 SDtfs, 126 SDslu, 169 SDs, 0 SdLazy, 94 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=750occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 116 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 4640 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...